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Alpha Vantage API vs Twelve Data API

Two free Finance APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

  • On access and reliability they're level, so pick by the data you need:
  • Alpha Vantage API: Realtime and historical stock data.
  • Twelve Data API: Stock market data (real-time & historical).

Side by side

Alpha Vantage APITwelve Data API
What it doesRealtime and historical stock data.Stock market data (real-time & historical).
ProviderAlpha VantageTwelve Data
API keyRequiredRequired
HTTPSYesYes
CORS (browser calls)UnknownUnknown
Status todayOnline · 793 msOnline · 836 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Alpha Vantage docs ↗Twelve Data docs ↗

About each API

Alpha Vantage logoAlpha Vantage API

Realtime and historical stock data.

Alpha Vantage offers free stock APIs in JSON and CSV formats for realtime and historical stock market data, options, forex, commodity, cryptocurrency feeds and over 50 technical indicators. Global market news API and sentiment scores powered by AI and machine learning. Supports intraday, daily, wee…

Strengths

  • HTTPS

Ratings, reviews and FAQ →

Twelve Data logoTwelve Data API

Stock market data (real-time & historical).

Try Twelve Data financial APIs for free with instant access to stock, forex, cryptocurrency, and fundamental market data. Real time, historical, and EOD data.

Strengths

  • HTTPS

Ratings, reviews and FAQ →

How to choose between them

  • Prototyping or a tutorial? Pick the one that needs no API key (neither does, so compare their free tiers).
  • Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
  • Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
  • Still unsure? Both are free to try: send one request to each and compare the data you get back.

Alpha Vantage vs Twelve Data FAQ

Do Alpha Vantage API and Twelve Data API need an API key?

Both require authentication (apiKey and apiKey).

More comparisons

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